x86: move ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY to dma-mapping.h

define it conditionally to i386.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

2 files changed, 14 insertions, 12 deletions

diff --git a/include/asm-x86/dma-mapping.h b/include/asm-x86/dma-mapping.h
index a7090bbb2a2d..1c88ce6b50d6 100644
--- a/include/asm-x86/dma-mapping.h
+++ b/include/asm-x86/dma-mapping.h
@@ -204,4 +204,18 @@ dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 {
         flush_write_buffers();
 }
+
+#ifdef CONFIG_X86_32
+#  define ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY
+extern int
+dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr,
+                            dma_addr_t device_addr, size_t size, int flags);
+
+extern void
+dma_release_declared_memory(struct device *dev);
+
+extern void *
+dma_mark_declared_memory_occupied(struct device *dev,
+                                  dma_addr_t device_addr, size_t size);
+#endif /* CONFIG_X86_32 */
 #endif
diff --git a/include/asm-x86/dma-mapping_32.h b/include/asm-x86/dma-mapping_32.h
index 03a75f866534..4ec4f45446cf 100644
--- a/include/asm-x86/dma-mapping_32.h
+++ b/include/asm-x86/dma-mapping_32.h
@@ -20,16 +20,4 @@ dma_get_cache_alignment(void)
 
 #define dma_is_consistent(d, h) (1)
 
-#define ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY
-extern int
-dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr,
-                            dma_addr_t device_addr, size_t size, int flags);
-
-extern void
-dma_release_declared_memory(struct device *dev);
-
-extern void *
-dma_mark_declared_memory_occupied(struct device *dev,
-                                  dma_addr_t device_addr, size_t size);
-
 #endif